Note 81 — Chapter VI · OF THE PARTICIPLE.
Reading edition
I know no example in which the preterite, which analogically would be forwent, is to be found. It may be here remarked that this verb, in violation of analogy, is generally spelled forego, as if it meant “to go before.” This is equally improper as it would be to write forebid, foresake, foreswear, for forbid, forsake, forswear.